Which Food To Avoid In Hyperthyroidism

A person’s diet has a lot of influence on overall health. Hyperthyroidism patients should be extra careful with their food habits. You should know the types of food to avoid in hyperthyroidism. For those who are not aware, hyperthyroidism is a condition where there is over-production of thyroid hormone.

The common symptoms are sweating, unintentional weight loss, muscle weakness, difficulty sleeping, etc. The diet often plays a significant role in either improving the condition or making it worse.

Symptoms of Hyperthyroidism

It is important to know what food to avoid in hyperthyroidism. But, it is also essential that you know the symptoms of hyperthyroidism. Many times, people are not aware that they have the disorder. The symptoms are easily mistaken with other health problems. Some of the symptoms are:

  • Increased appetite
  • Sudden weight loss
  • Nervousness, irritability, and anxiety
  • Feeling hot
  • Sweating
  • Pounding heart or palpitations
  • Hand tremors or slight shaking
  • Muscle weakness
  • Brittle hair
  • Menstrual changes
  • Tiredness or fatigue
  • Changes in the bowel movement

Foods to Avoid

Food alone cannot cure hyperthyroidism. But eating the correct diet can help you manage it better. The food we eat can affect the production and function of the thyroid. If you are suffering from hyperthyroidism, avoid the food items listed below. You can still have these once in a while. But keep a watch on the quantity you consume.

  • Food that has red dye
  • Iodized salt
  • Kelp or seaweed
  • Shellfish and fish
  • Egg yolks
  • Dairy products
  • Iodine supplements
  • Blackstrap molasses
  • Carrageenan
  • Baked goods that have iodate dough containers


Research has shown that autoimmune thyroid disease is more common in people with Celiac disease than those who are not. Therefore, the exact reason is not known. But, genetics do play a significant role. Someone who has Celiac disease is more prone to develop other autoimmune diseases.

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In Celiac disease, the ingestion of gluten causes damage to the small intestine. This is why people with Celiac disease have to follow a gluten-free diet. Gluten is the protein present in whey, barley, rye, and oats. Research suggests that a gluten-free diet helps the thyroid medicine to get absorbed by the intestine. It also helps with inflammation.


Food To Avoid In Hyperthyroidism

Certain animal studies have shown that soy ingestion can interfere with the treatment of hyperthyroidism. Some of the sources of soy that you should watch out for are:

  • Soy milk
  • Soy sauce
  • Soybean oil
  • Tofu


Too much caffeine is bad for you. But it is especially worse for patients of hyperthyroidism. It can cause palpitations, tremors, insomnia, and even anxiety. It is one of the foods to avoid in hyperthyroidism.

  • Regular soda
  • Energy drinks
  • Chocolate
  • Coffee
  • Tea

Food to Eat during Hyperthyroidism

Similar to the list of food to avoid in hyperthyroidism, there is some food that helps to improve the condition. Let us take a look at some of those items.


Zinc is useful in converting food into the energy that you use. It also enables you to keep the thyroid healthy. Thus, it helps your immune system. Some food sources of zinc are cocoa powder, cashews, beef, lamb, chickpeas, etc.

Vitamin D and Calcium

One of the main symptoms of hyperthyroidism is brittle and weak bones. Healthy bones are not that difficult to restore with treatment. However, calcium and vitamin D are necessary for building healthy bones. Some of the calcium and vitamin-D-rich foods are mushroom, fatty fish, okra, spinach, kale, etc.

Treatment for Hyperthyroidism

Often times, people are not able to accept that they have hyperthyroidism. They are not willing to take medicine for it and hope that a good diet alone will be enough. But if the doctor has prescribed medicine to you, then you should not miss it.

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If hyperthyroidism is left untreated, it can lead to serious problems. Some of the problems can be heart-related issues, fracture risk, bone loss, and other issues. In some cases, the treatment may include thyroid surgery or radiation surgery.

Be Healthy

Hence, it is of utmost importance that you convey your concerns to the doctor. Once that is done, be sure to follow the treatment that has been prescribed to you. If you are able to manage hyperthyroidism well, the medicine may be reduced or stopped later on.

Hyperthyroidism is not preventable, but it can be treated. Also, ask your doctor about the short-term as well as the long-term changes that you will have to make. It will help protect you against the side-effects of hyperthyroidism.


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